Question

How do you evaluate `[6-(6-4(5-7)+5)]+7`?

Answer 1

`[6-(6-4(5-7)+5)]+7=-6`

Explanation:

`[6-(6-4(5-7)+5)]+7`

= `[6-(6-4×(-2)+5)]+7`

= `[6-(6-(-8)+5)]+7`

= `[6-(6+8+5)]+7`

= `[6-19]+7`

= `-13+7`

= `-6`